AMD Radeon HD 7720 OEM vs AMD Radeon R9 270

VS

AMD Radeon HD 7720 OEM

AMD Radeon R9 270

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7720 OEM and 2GB VRAM Radeon R9 270 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 's Advantages

Released 8 months late

Boost Clock925MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (179.2GB/s vs 134.4GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7720 OEM

1.344 TFLOPS

Radeon R9 270 +76%

2.368 TFLOPS

Radeon HD 7720 OEM

VS

Radeon R9 270

Graphics Card

Mar 2013

Release Date

Nov 2013

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

925 MHz

1050 MHz

Memory Clock

1400 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

179.2GB/s

Render Config

10

Compute Units

20

-

800

Shading Units

1280

40

TMUs

80

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

26.88 GPixel/s

Pixel Rate

29.60 GPixel/s

33.60 GTexel/s

Texture Rate

74.00 GTexel/s

-

1344 GFLOPS

FP32 (float)

2.368 TFLOPS

-

FP64 (double)

148.0 GFLOPS

Board Design

150W

TDP

150W

450 W

Suggested PSU

450 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

-

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

Curacao

Barts LE (215-0798002)

GPU Variant

Curacao PRO (215-0848000)

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.7 billion

Transistors

2.8 billion

255 mm²

Die Size

212 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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